Logitech Media Server (formerly SlimServer, SqueezeCenter and Squeezebox Server) is a streaming audio server supported by Logitech (formerly Slim Devices), developed in particular to support their Squeezebox range of digital audio receivers.

The software is designed for streaming music over a network, allowing users to play their music collections from virtually anywhere there is an Internet connection. It supports a large number of audio formats including MP3, FLAC, WAV, Ogg, and AAC, as well as transcoding. It can stream to both software and hardware receivers, including the various Squeezebox models, as well as any media player capable of playing MP3 streams. Plugins from Logitech and third-party sources are also supported, allowing additional functionality to be added, and there is integration with Logitech's mysqueezebox.com online service. Logitech Media Server supports grouping clients in order to synchronize playback among all clients within a group.[1]

Logitech Media Server also works with networked music players, such as the RokuSoundBridge M1001, although Logitech does not officially support these competing products. Chumby devices also support streaming music from a Logitech Media Server,[2] as does the Rio Receiver when running replacement software (slimrio) to emulate the SliMP3 device, although it is limited to modest bitrates (<128kps).

SqueezePlay is based on SqueezeOS, the operating system that drives the hardware devices Squeezebox Duet, Radio and Touch. Written in Lua, it is also open source software and sees regular updates through Logitech's SVN releases. There is also a free softwareemulator version of the Squeezebox, called Softsqueeze, which is written in Java and can be run easily as an applet inside a web page. A third player, SqueezeSlave, is also available, which operates similarly but without any display. SqueezeSlave is designed to be run on a server connected to an amplifier/speakers, and can be controlled through the standard Logitech Media Server web interface. At this time, SqueezeSlave is incompatible with Logitech's Spotify plugin due to a lack of support for 'direct streaming'.[4]

In 2012, work began on Squeezelite, a cross-platform, headless, LMS client that supports playback synchronization, gapless playback, direct streaming (for use with Spotify, etc.), and playback at various sampling rates.[5]